yes,,the middle one. Looks so pretty that way. I had to decide where to put my window but I was somewhat limited. ended up going with a 4' tall casement window and stuck in a stained glass insert for the privacy aspect. I love it!

window between mirrors and get the kind that are not see through with the flip of a switch

The first option is great with the window to bring in light, and fresh air!

The windows about the vanity may present a problem with the lighting as you can't add lights above it. The hanging night are pretty but will create shadows and not enough light for doing makeup and such. Also if you end with direct light toward the afternoon, you may need to add shaded to cover the sun going into your eye. I think option 1 or 2 will be pretty and functional (I love option 2 best as it will give you plenty of natural light in the morning without a need for lights) . In ever case you will need to create privacy options for the window.